Reduction of hydroxyl ion diffusion in optical fibers

The MCVD fabrication scheme of optical fibers was modified by using chlorine drying and fluorine-phosphorus doped barrier layers to reduce the hydroxyl ion diffusion from the substrate tube. Additionally, chlorine gas was used in some fibers during the collapse procedure. The additional attenuation...

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Bibliographic Details
Published inOptics communications Vol. 54; no. 3; pp. 137 - 140
Main Authors Peder-Gothóni, A.-M., Tammela, S., Leppihalme, M.
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier B.V 01.06.1985
Elsevier Science
Subjects
Applied sciences
Circuit properties
Electric, optical and optoelectronic circuits
Electronics
Exact sciences and technology
Integrated optics. Optical fibers and wave guides
Optical and optoelectronic circuits
Energy loss
Reduction
Impurity
Modified chemical vapor deposition
Optical waveguide
Manufacturing
Hydroxyl
Optical fiber
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Summary:The MCVD fabrication scheme of optical fibers was modified by using chlorine drying and fluorine-phosphorus doped barrier layers to reduce the hydroxyl ion diffusion from the substrate tube. Additionally, chlorine gas was used in some fibers during the collapse procedure. The additional attenuation due to hydroxyl ion distribution of the fibers was measured by the differential mode attenuation (DMA) method. The results show that the variation in attenuation due to hydroxyl ions was lower in chlorine dryed optical fibers with fluorine-phosphorus doped barrier layers than in usual optical fibers with only boron barrier layers.
ISSN:0030-4018
1873-0310
DOI:10.1016/0030-4018(85)90278-0